We can pretty print JSON String in PHP using the json_encode() function and by making use of the JSON_PRETTY_PRINT option along with it.
Let's take a look by an example.
Unformatted JSON String
PHP Code
<?php
$unformattedCityJSON = '{"countries":[{"name":"Japan","cities":[{"name":"Tokyo","area":"Kanto"},{"name":"Osaka","area":"Kansai"}]},{"name":"China","cities":[{"name":"Beijing","area":"Beijing Municipality"},{"name":"Shanghai","area":"Shanghai Municipality"}]},{"name":"Australia","cities":[{"name":"Sydney","area":"New South Wales"},{"name":"Melbourne","area":"Victoria"}]}]}';
$data = json_decode($unformattedCityJSON, true);
$prettifiedCityJSON = json_encode($data, JSON_PRETTY_PRINT);
echo $prettifiedCityJSON;
?>
Prettified JSON Output:
{
"countries": [
{
"name": "Japan",
"cities": [
{
"name": "Tokyo",
"area": "Kanto"
},
{
"name": "Osaka",
"area": "Kansai"
}
]
},
{
"name": "China",
"cities": [
{
"name": "Beijing",
"area": "Beijing Municipality"
},
{
"name": "Shanghai",
"area": "Shanghai Municipality"
}
]
},
{
"name": "Australia",
"cities": [
{
"name": "Sydney",
"area": "New South Wales"
},
{
"name": "Melbourne",
"area": "Victoria"
}
]
}
]
}
Example Screenshot
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